Finding the Fourth Proportional to 163,742.23, 225,963.34 and 92,122.75
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Solution
The fourth proportional to 163,742.23, 225,963.34 and 92,122.75 is: 127,128.87
Step by Step Solution
- Step 1: Write the proportion equation
163,742.23 : 225,963.34 = 92,122.75 : x - Step 2: Convert to fraction form
163,742.23/225,963.34 = 92,122.75/x - Step 3: Cross multiply
163,742.23x = 225,963.34 × 92,122.75 - Step 4: Simplify right side
163,742.23x = 20,816,364,279.99 - Step 5: Solve for x
x = 20,816,364,279.99/163,742.23 - Step 6: Final answer
x = 127,128.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.